Alarm for gages, clocks, &amp;c.



No. 843,929. PATENTED FEB. 12, 1907. A. GHARLAND.

ALARM FOR GAGES, CLOCKS, Aw.

APPLICATION FILED DEG. 30.1905.

Witnesses: Inventor, (giajftd By M I A Attorneys ADELAR D CHARLAND, OFLAKE MEGANTIO, QUEBEC, CANADA.

ALARM Fon' GAGES, CLOCKS, as.

Specification of Letters Patent.

Patented Feb. 12,1907.

Application filed December 30, 1905. Serial No. 293.980.

To all whom it may concern:

Be it known that I, ADELARD OHARLAND, a subject of the King of'GreatBritain, residing at Lake Megantic, county of ()ompton, in the Provinceof Quebec, Canada, have invented certain new and useful Improvements inAlarms for. Gages, Clocks, &c.; and I do hereby declare that thefollowing is a full,

clear, and exact description of the invention, such as-will enableothers skilled in the art to which it appertains to make and use thesame.

Myinvention relates to alarmsfor steamgages and similar devices having adial and a movable pointer passing thereover.

The ob ect of my invention is to provide a device which will give analarm by closing an electrical circuit and whichwill not impede themovement of the; pointer.

A further object is to provide a simple de vice which. may be easily aplied to existing forms" of gages and clocks, wliich may beadjusted to avariety of positions, and which is independent of the mechanism of theapparatus to which it is applied, so that there will not be anelectrical circuit through the apparatus to which it is applied; and myinvention consists of the construction, combination, and arrangement ofparts as herein illustrated described, and claimed.

In the accompanying drawings I have illustrated two forms of embodimentof my invention as applied to two forms of apparatus,

in which drawings similar reference characters designate correspondingparts, .and in which-- Figure 1 is a front elevation showing theapplication of my invention to 'a steamgage. Fig. .2 is a side elevationof the device of my invention detached from any form of apparatus andshowing a supporting member in section. Fig. 3 is-an enflarged detail ofthe contact for closing the circuit.

Referring to the drawings, 1 designates an arc-shaped sup o'rt having aflattened end 2,

by means of w ich it may be attached adjacent a steam-gage or similarapparatus.

Slidably disoseil on the support 1 is a collar 3, provide with aset-screw 4, by means of which it may be fixed at any point on thesupport 1. Carried by the collar 3 is a curved tubular arm 5, having onits free end a body of insulation 6. Secured onone side of the body ofinsulation 6 is a flexible metallic contact 7, and secured on the oposite side of thebody of insulation 6 is a exible metallic contact 8 ofa greater length than the contact member 7 and provided on its outer endwith a body ofinsulatin material 9. Leading from the contact mein era 7and 8 are wires 10, adapted to form an electrical circuit, in which is.placed a bell 11 and switch 12 and 'a battery 13 of ordinary con-.struction.

I i-Fig. 1, A designates a gage, B a glass closure for the gage havingan arc-shaped slot C therein, and D designates the pointer of the gage.The steam-gage illustrated in Fig. 1 is provided with the usualsteam-pipe F.

In the operation of the form shown in Fig. 1 the arm 5 may be adjustedto any point on the support 1, so that when the pointer D reaches theoint which the contact 9 covers the circuit ormed by the wires 10 willbe closed by the member 8 contacting with the member 7 and the bell 11will be rung. The

members 7 and 8 are made of very thin flexi- Having thus fully describedmy invention, 1

Letters Patent, .is

1. In combination with a dial and a pointer adapted to travel thereover,a support independent of the dial, a collar adjustably dis-. posed onthe support, means for locking the collar and the sup ort, a v luralitof con tacts connected wit the co lar an disposed in the path ofmovement of the ointer, and wires forming a circuit between t econtacts;

2. In combination with a dial and a pointer adapted to travel thereover,an arc-shaped support provided with a flattened end, a collar on thesupport, "a set-screw carried by the collar, an arm carried b thecollar, 8. body of insulation carried by tile arm, contacts carried bythe insulation, wires adapted to form a circuit between the contacts,and a body of insulation on one of the contacts in the path of movementof the pointer.

3. In combination with a dial and a pointer adapted to travel thereover,an arc-shaped support, a collar on the support, means for securing thecollar on the support, a curved tubular arm carried by the collar, apair of flexible 'electricallyseparated contacts carried by the arm,wires disposed through the tubular arm and adapted to form's. circuitwhat I claim as new, and desire'to secure by bet-ween the contacts, anda body of insular-3 slot, Wires adapted to forzn a circuit between tionon one of the contacts in the path of said contacts, and abody ofinsulation on one movement of the pointer. oi the contacts in-the pathof movement of 4. In combination with a dial and a pointer thepointer,.. 5 adapted to travel thereover, a slotted cover In witnesswhereof I have hereunto set my 15 for the dial, an arc shaped supportsecured j hand in the presence of two Witnesses. adjacent the dial, amovable member adjust- ADELARD OHARLAND. ably secured on the support,electrically- Witnesses: separated flexible contacts vcarried by theSAM. RIoUX, 1o movable member and disposed through said LEONIDASCHATEAUNEUF.

